Trigger valve apparatus for pneumatic tool

Details Trigger valve apparatus for pneumatic tool Trigger valve apparatus for pneumatic tool

2006-03-21

2006-03-21

Huynh, Louis K. (Department: 3721)

Elongated-member-driving apparatus

With means to move or guide member into driving position

Including supply magazine for constantly urged members

C227S008000

Reexamination Certificate

active

07014089

ABSTRACT:
A plunger is shiftable in response to a trigger operation by a user. A valve piston has a valve piston chamber therein for slidably accommodating the plunger and an axial bore into which the plunger is inserted. An air passage connects the valve piston chamber to an atmosphere via a clearance between the plunger and the axial bore of the valve piston. A seal member is provided to seal the clearance between the plunger and the axial bore of the valve piston. And, a relief passage is formed on at least one of the plunger and the axial bore of the valve piston to open the air passage, thereby allowing compressed air to exit from the valve piston chamber to the atmosphere under a condition where the plunger is engaged with the axial bore of the valve piston.

REFERENCES:
patent: 3559449 (1971-02-01), Steinmetz
patent: 3568909 (1971-03-01), Perkins
patent: 3771710 (1973-11-01), Perkins et al.
patent: 3808620 (1974-05-01), Rothfuss
patent: 3964659 (1976-06-01), Eiben et al.
patent: 3969989 (1976-07-01), Maurer et al.
patent: 4122904 (1978-10-01), Haytayan
patent: 4211352 (1980-07-01), Zilka
patent: 4404894 (1983-09-01), Oesterle
patent: 4436237 (1984-03-01), Vornberger et al.
patent: 4581964 (1986-04-01), Takatsuru
patent: 5687897 (1997-11-01), Fa et al.
patent: 5715986 (1998-02-01), Sauer
patent: 5785228 (1998-07-01), Fa et al.
patent: 5836501 (1998-11-01), Lai
patent: 5850961 (1998-12-01), Braun et al.
patent: 5924621 (1999-07-01), Hung
patent: 6745928 (2004-06-01), Ishizawa et al.
patent: 51-34144 (1976-09-01), None
patent: 8-336769 (1996-12-01), None

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